By Kieren Williams The UK’s weather has become a “tale of two halves” asa cold blast sets in today and temperatures tumble down to -13.8C. After a few weeks of milder than average temperature for much of the country, a cold bloc of Arctic air swept down from the north. It brought with it freezing temperatures, snow and ice, a number of severe and even amber weather warnings were put in place by the Met Office. They cautioned that snow could be potentially disruptive as it’s set to last until Saturday in places. Speaking to the Mirror, a spokesperson for the Met Office described the weather as …